公开(公告)号：US20070041011A1

公开(公告)日：2007-02-22

申请号：US11209353

申请日：2005-08-22

Applicant: Carl Hayden ,  David Chandler ,  A. Luong

Inventor： Carl Hayden ,  David Chandler ,  A. Luong

IPC: G01J3/30 ,  G01J1/58

CPC classification number: G01J1/42 ,  G01J3/14 ,  G01J3/2889 ,  G01N21/6408 ,  G01N21/6452 ,  G01N21/6458 ,  G01N2021/6417 ,  G01N2021/6421 ,  G01N2021/6441

Abstract: Photons emitted from a sample responsive to being excited by laser pulses are directed through a prism onto a photomultiplier tube having several spaced-apart anodes. The prism alters the path of each photon as a function of its wavelength so that the wavelength determines the anode to which the photon is directed. Taps of first and second delay lines that are coupled to respective alternating anodes. When an anode receives the photon, it generates a pulse that propagates through the delay line in opposite directions from its associated tap. A timer determines first and second times from the laser pulse to the pulse reaching the first and second ends of the delay line. The difference between the first and second times corresponds to the wavelength of the emitted photon and the sum of the first and second times corresponds to the emission delay of the emitted photon.

公开(公告)号：US5648866A

公开(公告)日：1997-07-15

申请号：US489473

申请日：1995-06-12

Applicant: Rick Trebino ,  Ken DeLong ,  Carl Hayden

Inventor： Rick Trebino ,  Ken DeLong ,  Carl Hayden

IPC: G02B5/04 ,  G02F1/35 ,  G02F1/37

CPC classification number: G02F1/37 ,  G02B5/04 ,  G02F2001/354 ,  G02F2001/3546

Abstract: An optical system for efficiently directing a large bandwidth light (e.g., a femtosecond laser pulse) onto a nonlinear optical medium includes a plurality of optical elements for directing an input light pulse onto a nonlinear optical medium arranged such that the angle .theta..sub.in which the light pulse directed onto the nonlinear optical medium is substantially independent of a position x of the light beam entering the optical system. The optical system is also constructed such that the group velocity dispersion of light pulses passing through the system can be tuned to a desired value including negative group velocity dispersion.

Abstract translation: 用于将大带宽光（例如，飞秒激光脉冲）有效地引导到非线性光学介质上的光学系统包括多个光学元件，用于将输入光脉冲引导到布置成使得光 引导到非线性光学介质上的脉冲基本上与进入光学系统的光束的位置x无关。 光学系统还被构造成使得通过系统的光脉冲的群速度色散可被调谐到包括负组速度色散的期望值。